Subscribe

Enter your E-mail address to receive our Sky-mail eNews

Join Our Mailing List

Public Tours

The Observatory and gift shop are currently open with restrictions from 10 AM - 4 PM, Friday-Monday and every day by appointment from 8:30 AM to 5:30 PM.

Masks must be worn inside the Observatory. Whether visiting the gift shop or taking a tour, a maximum of four people (or up to six people all from the same household) are allowed at one time. Reservations for a visit at a specific time are encouraged by calling 617-696-0562 or by sending E-mail to dmccasland@bluehill.org. Tickets for tours may be purchased below.


Purchase Tour Tickets

Support Blue Hill Observatory

Please help us to continue delivering our Programs by making a donation directly through PayPal or by shopping with Giving Assistant:


Giving Assistant

Weather Summaries

March 2021 Summary – Warmer and Drier Than Average and Sunniest on Record

March 2021 Summary – Warmer and Drier Than Average and Sunniest on Record

Blue Hill Observatory March 2021 Summary: March was warmer, drier, less snowy, and much sunnier than average. The 24-hour adjusted mean temperature for the month of 39.2 deg F was 4.7 degrees warmer than the 1891-2020 130-year average for March, and it was 3.4 degrees warmer than the 1981-2010 30-year average. The average maximum temperature […]

| April 5, 2021 | Reply
Winter 2020-2021 Summary – Warmer, Wetter and Snowier Than Average

Winter 2020-2021 Summary – Warmer, Wetter and Snowier Than Average

Blue Hill ObservatoryWinter 2020-2021 Summary: The winter (December-February) season was generally warm with a few cold periods and with above average precipitation and snowfall. The 24-hour mean temperature for the winter of 30.5 deg F was 3.0 degrees warmer than the 130-year winter average and 1.5 degrees warmer than the 1981-2010 30-year average. The average […]

| March 8, 2021 | Reply

Weather Now

What's Happening on the Hill

Observatory Open for Tours Through Late May/Early June 2021

Observatory Open for Tours Through Late May/Early June 2021

We are excited to announce that the major Observatory renovation project, which has been in the planning stages for several years, is underway. Extensive work will start in June that will require that we close to the public until some time in 2022. The building will get a much-needed rehab including concrete repair, historically appropriate […]

| April 3, 2021 | Reply
State of the Climate at Blue Hill Observatory: 2020

State of the Climate at Blue Hill Observatory: 2020

This report is an updated summary of the extensive annual and seasonal climate records of the Blue Hill Observatory that also documents the changes that have occurred in several key parameters over the entire period of record. This document is also available as a downloadable PDF file.     

| February 1, 2021 | Reply
Small Local Earthquake Observed on November 8th

Small Local Earthquake Observed on November 8th

Shortly after 9 AM EST on Sunday, November 8th, 2020 a small 3.6 magnitude earthquake shook parts of southeastern New England. The epicenter was about 6.2 miles below ground under Buzzard’s Bay and just offshore of Bliss Corner, in Dartmouth, Massachusetts. The earthquake was recorded on the seismographs at the Blue Hill Observatory and other […]

| November 9, 2020 | Reply
November Record Warmth at Blue Hill

November Record Warmth at Blue Hill

A period of unseasonably warm weather that arrived on Thursday, November 5th has brought several daily record high temperatures to the Observatory. The new records observed through November 11th are: 11/06/2020: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 72F,                      BREAKS PREVIOUS RECORD OF 71F SET IN 1959 AND 201511/07/2020: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 75F,                      TIES PREVIOUS […]

| November 9, 2020 | Reply
Record Snowfall at Blue Hill on October 30th

Record Snowfall at Blue Hill on October 30th

The remnants of Hurricane Zeta, another developing coastal storm behind it, and a very cold air mass for October have combined to provide a period of heavy rain on Thursday, October 29th, into the following night, which changed to snow early Friday morning. A total of 6.5 inches of snow was measured on the summit […]

| October 30, 2020 | Reply